Small Satellite's Role in Future Hyperspectral Earth Observation Missions

Guelman, M.; Ortenberg, Fred

doi:10.2514/6.iac-06-b5.4.07

Cited by 3 publications

(3 citation statements)

References 1 publication

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“…Past and present operational satellites are mainly concerned with multispectral data, but hyperspectral sensors are being considered more frequently for upcoming missions [1,2]. By utilizing hyperspectral sensors it is expected to enhance the capabilities to detect targets of interest and estimate their characteristics [3]. Experimental space-based hyperspectral sensors include HICO and Hyperion [4,5].…”

Section: Introductionmentioning

confidence: 99%

Simulation Tool for Hyper-Spectral Imaging From a Satellite

Lapadatu

Bakken

Grøtte

et al. 2019

2019 10th Workshop on Hyperspectral Imaging and Signal Processing: Evolution in Remote Sensing (WHISPERS)

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This paper presents a tool created for simulating the expected radiance from oceanic geophysical parameters through the atmosphere as perceived by a hyperspectral remote sensing satellite. The effects of varying off-nadir viewing angles, solar zenith angles and the presence of water clouds on the resulting radiance has been analyzed, and simulated top-of-atmosphere (TOA) radiance values coincide well with experimental data.

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Section: Introductionmentioning

confidence: 99%

Simulation Tool for Hyper-Spectral Imaging From a Satellite

Lapadatu

Bakken

Grøtte

et al. 2019

2019 10th Workshop on Hyperspectral Imaging and Signal Processing: Evolution in Remote Sensing (WHISPERS)

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“…Hyperspectral sensors, which are also known as imaging spectrometers, are capable of obtaining images in hundreds of spectral bands, and they can provide abundant information in relation to a wide variety of Earth observation and remote sensing applications. Although the challenges in adapting high spatial resolution hyperspectral sensors to small satellites have been studied theoretically in terms of the resolution, quality, and volume of hyperspectral data, the practical feasibility appears low for satellites <100 kg, even when applying state-of-the-art technology [ 5 , 6 ]. The hyperspectral sensor considered in the above studies was a push-broom/line-scanning spectrometer, which had been conventionally mounted on large satellites or on manned aircraft.…”

Section: Introductionmentioning

confidence: 99%

HPT: A High Spatial Resolution Multispectral Sensor for Microsatellite Remote Sensing

Kurihara

Takahashi

Sakamoto

et al. 2018

Sensors

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Although nano/microsatellites have great potential as remote sensing platforms, the spatial and spectral resolutions of an optical payload instrument are limited. In this study, a high spatial resolution multispectral sensor, the High-Precision Telescope (HPT), was developed for the RISING-2 microsatellite. The HPT has four image sensors: three in the visible region of the spectrum used for the composition of true color images, and a fourth in the near-infrared region, which employs liquid crystal tunable filter (LCTF) technology for wavelength scanning. Band-to-band image registration methods have also been developed for the HPT and implemented in the image processing procedure. The processed images were compared with other satellite images, and proven to be useful in various remote sensing applications. Thus, LCTF technology can be considered an innovative tool that is suitable for future multi/hyperspectral remote sensing by nano/microsatellites.

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“…Small satellites have been found to be very successful for dedicated applications such as remote sensing due to features like low mass (1

to 50

), small size, low power consumption and low manufacturing costs [ 1 ]. One such effort aims to build a dedicated small-satellite-compatible, miniaturized spectroscopic cameras for remote sensing [ 2 ]. The integration of MEMS technology is promising for the future development of such systems and for small satellite programs in general [ 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

MEMS Tunable Diffraction Grating for Spaceborne Imaging Spectroscopic Applications

Muttikulangara

Barański

Rehman

et al. 2017

Sensors

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Diffraction gratings are among the most commonly used optical elements in applications ranging from spectroscopy and metrology to lasers. Numerous methods have been adopted for the fabrication of gratings, including microelectromechanical system (MEMS) fabrication which is by now mature and presents opportunities for tunable gratings through inclusion of an actuation mechanism. We have designed, modeled, fabricated and tested a silicon based pitch tunable diffraction grating (PTG) with relatively large resolving power that could be deployed in a spaceborne imaging spectrometer, for example in a picosatellite. We have carried out a detailed analytical modeling of PTG, based on a mass spring system. The device has an effective fill factor of 52% and resolving power of 84. Tuning provided by electrostatic actuation results in a displacement of 2.7 sans-serifμnormalm at 40 V. Further, we have carried out vibration testing of the fabricated structure to evaluate its feasibility for spaceborne instruments.

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Small Satellite's Role in Future Hyperspectral Earth Observation Missions

Cited by 3 publications

References 1 publication

Simulation Tool for Hyper-Spectral Imaging From a Satellite

Simulation Tool for Hyper-Spectral Imaging From a Satellite

HPT: A High Spatial Resolution Multispectral Sensor for Microsatellite Remote Sensing

MEMS Tunable Diffraction Grating for Spaceborne Imaging Spectroscopic Applications

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